1. How big can the koi in the fish tank grow in a year The koi in the fish tank is about 10-20 cm a year. This kind of fish is a common large-scale ornamental fish. Large fish tanks must be prepared for artificial breeding, otherwise the fish will not grow up and will not move when they grow up. It does not require high temperature, because it belongs to wide-temperature fish, but the feeding water temperature should not be too low, otherwise the fish will have no vitality. Pay attention to oxygenation at ordinary times. If you are big, you will consume more oxygen, and if you are short of oxygen, you will float your head.
2. How to raise koi fish to grow bigger1. Oxygen is sufficient: Although koi fish lives in water, its demand for oxygen is still relatively large. When oxygen is insufficient, it may die immediately. Furthermore, the density of feeding fish is relatively high, and they all need oxygen, so oxygen is easy to be insufficient. When oxygen is insufficient, oxygen should be given in time.
2. Good water quality: Koi can't live without water. Good water quality makes Koi live longer. If water contains chlorine and ammonia poison, they will be poisoned. To prevent toxins in water bodies, we must change water frequently, once every three days, and expose to the sun for three days before changing water to remove chlorine.
3. There is food: Koi is a kind of fish that is easy to raise in general, and its feeding habits are miscellaneous. However, if the food fed lacks nutrition, it will not grow fast, its resistance will decrease, and it will easily get sick and die. When choosing food, we must ensure the quality and healthy eating of koi.
